1 files changed, 41 insertions, 52 deletions

diff --git a/src/nvim/screen.c b/src/nvim/screen.c
index b9450e63eb..5df279c0a7 100644
--- a/src/nvim/screen.c
+++ b/src/nvim/screen.c
@@ -634,9 +634,17 @@ bool win_cursorline_standout(const win_T *wp)
     || (wp->w_p_cole > 0 && (VIsual_active || !conceal_cursor_line(wp)));
 }
 
-static DecorationState decorations;
+static DecorationRedrawState decorations;
 bool decorations_active = false;
 
+void decorations_add_luahl_attr(int attr_id,
+                                int start_row, int start_col,
+                                int end_row, int end_col)
+{
+  kv_push(decorations.active,
+          ((HlRange){ start_row, start_col, end_row, end_col, attr_id, NULL }));
+}
+
 /*
  * Update a single window.
  *
@@ -1228,6 +1236,8 @@ static void win_update(win_T *wp)
   srow = 0;
   lnum = wp->w_topline;  // first line shown in window
 
+  decorations_active = decorations_redraw_reset(buf, &decorations);
+
   if (buf->b_luahl && buf->b_luahl_window != LUA_NOREF) {
     Error err = ERROR_INIT;
     FIXED_TEMP_ARRAY(args, 4);
@@ -1248,7 +1258,6 @@ static void win_update(win_T *wp)
     }
   }
 
-  decorations_active = extmark_decorations_reset(buf, &decorations);
 
   for (;; ) {
     /* stop updating when reached the end of the window (check for _past_
@@ -2311,6 +2320,8 @@ win_line (
 
   char *luatext = NULL;
 
+  buf_T *buf = wp->w_buffer;
+
   if (!number_only) {
     // To speed up the loop below, set extra_check when there is linebreak,
     // trailing white space and/or syntax processing to be done.
@@ -2333,8 +2344,31 @@ win_line (
     }
 
     if (decorations_active) {
-      has_decorations = extmark_decorations_line(wp->w_buffer, lnum-1,
-                                                 &decorations);
+      if (buf->b_luahl && buf->b_luahl_line != LUA_NOREF) {
+        Error err = ERROR_INIT;
+        FIXED_TEMP_ARRAY(args, 3);
+        args.items[0] = WINDOW_OBJ(wp->handle);
+        args.items[1] = BUFFER_OBJ(buf->handle);
+        args.items[2] = INTEGER_OBJ(lnum-1);
+        lua_attr_active = true;
+        extra_check = true;
+        Object o = executor_exec_lua_cb(buf->b_luahl_line, "line",
+                                        args, true, &err);
+        lua_attr_active = false;
+        if (o.type == kObjectTypeString) {
+          // TODO(bfredl): this is a bit of a hack. A final API should use an
+          // "unified" interface where luahl can add both bufhl and virttext
+          luatext = o.data.string.data;
+          do_virttext = true;
+        } else if (ERROR_SET(&err)) {
+          ELOG("error in luahl line: %s", err.msg);
+          luatext = err.msg;
+          do_virttext = true;
+        }
+      }
+
+      has_decorations = decorations_redraw_line(wp->w_buffer, lnum-1,
+                                                &decorations);
       if (has_decorations) {
         extra_check = true;
       }
@@ -2532,41 +2566,6 @@ win_line (
   line = ml_get_buf(wp->w_buffer, lnum, FALSE);
   ptr = line;
 
-  buf_T *buf = wp->w_buffer;
-  if (buf->b_luahl && buf->b_luahl_line != LUA_NOREF) {
-    size_t size = STRLEN(line);
-    if (lua_attr_bufsize < size) {
-      xfree(lua_attr_buf);
-      lua_attr_buf = xcalloc(size, sizeof(*lua_attr_buf));
-      lua_attr_bufsize = size;
-    } else if (lua_attr_buf) {
-      memset(lua_attr_buf, 0, size * sizeof(*lua_attr_buf));
-    }
-    Error err = ERROR_INIT;
-    // TODO(bfredl): build a macro for the "static array" pattern
-    // in buf_updates_send_changes?
-    FIXED_TEMP_ARRAY(args, 3);
-    args.items[0] = WINDOW_OBJ(wp->handle);
-    args.items[1] = BUFFER_OBJ(buf->handle);
-    args.items[2] = INTEGER_OBJ(lnum-1);
-    lua_attr_active = true;
-    extra_check = true;
-    Object o = executor_exec_lua_cb(buf->b_luahl_line, "line",
-                                    args, true, &err);
-    lua_attr_active = false;
-    if (o.type == kObjectTypeString) {
-      // TODO(bfredl): this is a bit of a hack. A final API should use an
-      // "unified" interface where luahl can add both bufhl and virttext
-      luatext = o.data.string.data;
-      do_virttext = true;
-    } else if (ERROR_SET(&err)) {
-      ELOG("error in luahl line: %s", err.msg);
-      luatext = err.msg;
-      do_virttext = true;
-      api_clear_error(&err);
-    }
-  }
-
   if (has_spell && !number_only) {
     // For checking first word with a capital skip white space.
     if (cap_col == 0) {
@@ -3538,8 +3537,8 @@ win_line (
         }
 
         if (has_decorations && v > 0) {
-          int extmark_attr = extmark_decorations_col(wp->w_buffer, (colnr_T)v-1,
-                                                     &decorations);
+          int extmark_attr = decorations_redraw_col(wp->w_buffer, (colnr_T)v-1,
+                                                    &decorations);
           if (extmark_attr != 0) {
             if (!attr_pri) {
               char_attr = hl_combine_attr(char_attr, extmark_attr);
@@ -3549,15 +3548,6 @@ win_line (
           }
         }
 
-        // TODO(bfredl): luahl should reuse the "active decorations" buffer
-        if (buf->b_luahl && v > 0 && v < (long)lua_attr_bufsize+1) {
-          if (!attr_pri) {
-            char_attr = hl_combine_attr(char_attr, lua_attr_buf[v-1]);
-          } else {
-            char_attr = hl_combine_attr(lua_attr_buf[v-1], char_attr);
-          }
-        }
-
         if (wp->w_buffer->terminal) {
           char_attr = hl_combine_attr(term_attrs[vcol], char_attr);
         }
@@ -4042,8 +4032,7 @@ win_line (
         kv_push(virt_text, ((VirtTextChunk){ .text = luatext, .hl_id = 0 }));
         do_virttext = true;
       } else if (has_decorations) {
-        VirtText *vp = extmark_decorations_virt_text(wp->w_buffer,
-                                                     &decorations);
+        VirtText *vp = decorations_redraw_virt_text(wp->w_buffer, &decorations);
         if (vp) {
           virt_text = *vp;
           do_virttext = true;